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V-235861

CAT I (High)

Docker Enterprise server certificate file ownership must be set to root:root.

Rule ID

SV-235861r961863_rule

STIG

Docker Enterprise 2.x Linux/UNIX Security Technical Implementation Guide

Version

V2R2

CCIs

CCI-000366

Discussion

Verify that the Docker server certificate file (the file that is passed along with --TLScert parameter) is owned and group-owned by root. The Docker server certificate file should be protected from any tampering. It is used to authenticate Docker server based on the given server certificate. Hence, it must be owned and group-owned by root to maintain the integrity of the certificate. By default, the ownership and group-ownership for Docker server certificate file is correctly set to root.

Check Content

Ensure that Docker server certificate file ownership is set to root:root.

Execute the below command to verify that the Docker server certificate file is owned and group-owned by root:

stat -c %U:%G <path to Docker server certificate file> 

If the command does not return root:root, this is a finding.

Fix Text

chown root:root <path to Docker server certificate file>

This sets the ownership and group-ownership for the Docker server certificate file to root.